Alternatively, you can (have an expert) look into the webRTC (beta) in Wowza; it allows to grab the webcam signal in a web page, encode it, and send it to a Wowza Server. As long as you use a web browser that supports webRTC, you won't have to install any software on the local machine.

From the Wowza server, you can distribute the stream onward to end users, or to a CDN.